The Science of Light
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In our eReader you can find the full English version of the book. Read The Science of Light Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book The Science of Light
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None of the waves will therefore be transmitted beyond it.
Thus it all depends upon how B is turned as to whether it is transparent or opaque to the waves. Waves like those between A and B, in which the vibrations are all POLARISATION 73 in one direction (in this case vertical), are said to be plane polarised, the plane of polarisation being the plane to which the vibrations are all perpendicular. In this case the plane of polarisation is the horizontal plane.
The polarisation of light was firs...t observed by Bartholinus in 1670. He found that a ray of light when passed through a crystal of Iceland spar was split up into two separate rays of equal brightness. Thus on looking through the crystal everything appears doubled.
On passing the rays through a second crystal they are again doubled, but now the rays are usually of unequal Fig. 42.
brightness, and the relative brightness varies as the second crystal is rotated. In two positions of the second crystal two of the rays disappear completely, so that there is in these positions no subdivision of the rays by the second crystal.
What to read after The Science of Light?
You can find similar books in the "Read Also" column, or choose other free books by Percy Phillips to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
None of the waves will therefore be transmitted beyond it.
Thus it all depends upon how B is turned as to whether it is transparent or opaque to the waves. Waves like those between A and B, in which the vibrations are all POLARISATION 73 in one direction (in this case vertical), are said to be plane polarised, the plane of polarisation being the plane to which the vibrations are all perpendicular. In this case the plane of polarisation is the horizontal plane.
The polarisation of light was firs...t observed by Bartholinus in 1670. He found that a ray of light when passed through a crystal of Iceland spar was split up into two separate rays of equal brightness. Thus on looking through the crystal everything appears doubled.
On passing the rays through a second crystal they are again doubled, but now the rays are usually of unequal Fig. 42.
brightness, and the relative brightness varies as the second crystal is rotated. In two positions of the second crystal two of the rays disappear completely, so that there is in these positions no subdivision of the rays by the second crystal.
What to read after The Science of Light?
You can find similar books in the "Read Also" column, or choose other free books by Percy Phillips to read onlineMoreLess
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